CBSE Class 10 Maths (Standard) 2019 · Paper 30/5/1 · Question 27(b)
The angle of elevation of an aeroplane from a point on the ground is . After a flight of seconds, the angle of elevation changes to . If the plane is flying at a constant height of metres, find the speed of the aeroplane.
Answer
Speed of the aeroplane m/s (equivalently km/h).
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